ADDITIONAL SYSTEM INFORMATION :
・OS:
Microsoft Windows [Version 10.0.17134.829]
・java -version:
openjdk version "14-ea" 2020-03-17
OpenJDK Runtime Environment (build 14-ea+19-824)
OpenJDK 64-Bit Server VM (build 14-ea+19-824, mixed mode, sharing)

A DESCRIPTION OF THE PROBLEM :
Processes such as antivirus software may hold files for a short time.
If the process holds a jar file, FileNotFoundException is thrown at
JarURLConnection.getJarFile(), when accessing the file to get resource.
Also, if the JDK tries to load a class file in a jar or module file held by the process,
java.lang.NoClassDefFoundError is thrown at initial class loading.

This can be fixed by retrying the access after a short sleep.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Run test case.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
No Exception
ACTUAL -
Exception in thread "main" java.io.FileNotFoundException: C:\work\tmp\ZipException\tmp.jar (The process cannot access the file because it is being used by another process)
        at java.base/java.io.RandomAccessFile.open0(Native Method)
        at java.base/java.io.RandomAccessFile.open(RandomAccessFile.java:347)
        at java.base/java.io.RandomAccessFile.<init>(RandomAccessFile.java:261)
        at java.base/java.io.RandomAccessFile.<init>(RandomAccessFile.java:216)
        at java.base/java.util.zip.ZipFile$Source.<init>(ZipFile.java:1206)
        at java.base/java.util.zip.ZipFile$Source.get(ZipFile.java:1172)
        at java.base/java.util.zip.ZipFile$CleanableResource.<init>(ZipFile.java:719)
        at java.base/java.util.zip.ZipFile.<init>(ZipFile.java:239)
        at java.base/java.util.zip.ZipFile.<init>(ZipFile.java:169)
        at java.base/java.util.jar.JarFile.<init>(JarFile.java:346)
        at java.base/sun.net.www.protocol.jar.URLJarFile.&lt;init&gt;(URLJarFile.java:103)
        at java.base/sun.net.www.protocol.jar.URLJarFile.getJarFile(URLJarFile.java:72)
        at java.base/sun.net.www.protocol.jar.JarFileFactory.get(JarFileFactory.java:94)
        at java.base/sun.net.www.protocol.jar.JarURLConnection.connect(JarURLConnection.java:125)
        at java.base/sun.net.www.protocol.jar.JarURLConnection.getJarFile(JarURLConnection.java:92)
        at ZipExceptionTest.main(ZipExceptionTest.java:43)

or

Error occurred during initialization of VM
java/lang/NoClassDefFoundError: java/lang/Object

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I can send test case.
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FREQUENCY : rarely